SERVICE MANUAL
ENGLISH
BR 601 / BR 651 / BR 751 / BR 751 C 909 6424 000(3)2007-12
61
DRIVE SYSTEM
DRIVE SYSTEM MOTOR CARBON BRUSH CHECK AND REPLACEMENT (Machines after January
2007)
Check and replacement
Drive the machine to the appointed disposal area, and empty the recovery water tank (58) with the hose (22).
Empty the washing water tank (59) with the tap (36).
Place the machine on a hoisting system (if available).
Otherwise, drive the machine on a level fl oor.
Turn the ignition key (12) to "0".
Carefully lift the tank assembly (60).
Disconnect the battery connector (63).
Remove the drive system motor carbon brush covers (A) (bayonet joint).
Remove the gasket (B) and check them for integrity and effi ciency; if necessary, replace them.
Remove the screws (C), then remove the four carbon brushes (D).
Check the carbon brushes (D) for wear. Replace the carbon brushes when: the contact with the motor armature is insuffi cient,
the carbon brushes are worn, the carbon brush contact surface is not integral, the thrust spring is broken, etc.
If necessary, replace the carbon brushes.
Reset
Assemble the components in the reverse order of disassembly.
A
A
A
A
C
D
B
D
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